If you have SP1 and the latest IBT AVX should work by default. If it's still not working I can only think to blame either windows or IBT. I know in the 4.5 GHz range I get 60s without, in the 100s with, which matches up with these numbers being posted. How long ago did everyone getting these low scores grab their copy of IBT? Maybe someone messed up and uploaded it with outdated libraries.

If you have SP1 and the latest IBT AVX should work by default. If it's still not working I can only think to blame either windows or IBT. I know in the 4.5 GHz range I get 60s without, in the 100s with, which matches up with these numbers being posted. How long ago did everyone getting these low scores grab their copy of IBT? Maybe someone messed up and uploaded it with outdated libraries.

Click to expand...

Not sure why. All I do know is that even Asus stated to not rely on IBT for OC stability testing, due to nil or flakey support for AVX.

Without a system change, going from IBT 2.50 to 2.52, has seen my results change from 48GFlops, to 91+
I'm guessing it was just flakey on my system

I get 98 Gflops on a stock 2600k. You should be close to 160-170 with such high OC and 2 extra cores

Click to expand...

Yes, but that's using AVX instructions, I made this run without AVX, and right now it's higher than a dual Xeon system without AVX try your 2600K without AVX and you'll see what I'm talking about (I also have a 2600K)